Preparation device of stannous isooctenoate

Abstract

The invention provides a stannous isooctenoate preparation device, belongs to the technical field of organic catalyst preparation devices, and solves the technical problems that an existing preparation device lacks an efficient inert gas protection system, adopts a single stirring mode, is low in automation degree of a feeding system, seriously restricts the industrial production efficiency and the like. Comprising a working platform, a reaction kettle, a stirring mechanism and two symmetrically-arranged feeding assemblies, an avoiding opening is formed in the working platform, the reaction kettle is located in the avoiding opening, the stirring mechanism is arranged in the reaction kettle, the upper end of the stirring mechanism extends out of the reaction kettle, and the upper end of the stirring mechanism communicates with the air outlet end of an external air pump; and the gas inlet end of the gas pump is communicated with an external nitrogen generation assembly. Efficient inert gas protection can be provided for the preparation process, raw materials are rapidly and effectively mixed, the conditions of large local concentration gradient, insufficient reaction and the like are avoided, meanwhile, automatic feeding is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of organic catalyst preparation devices and relates to a preparation device for stannous isooctenoate. Background Art

[0002] In the field of organic synthesis, stannous isooctenate is a key catalyst, and optimizing its preparation process is crucial to product quality and production efficiency. Existing preparation equipment lacks an efficient inert gas protection system in actual operation, making it difficult to ensure the purity of stannous isooctenate. The stirring mechanism often uses a single stirring mode, which makes it difficult to quickly and effectively mix the raw materials. This leads to uneven mixing of the materials, which can easily cause large local concentration gradients and incomplete reactions. The feeding system has a low degree of automation, making it difficult to achieve precise positioning and quantitative delivery of materials, and the feed port is easily contaminated by impurities.

[0003] Therefore, we propose a preparation device for stannous isooctenoate, which can provide efficient inert gas protection for the preparation process, and quickly and effectively mix the raw materials through composite stirring, avoiding the occurrence of large local concentration gradients and insufficient reactions. At the same time, it realizes automatic loading, reduces manual intervention, and improves production efficiency. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the existing technology and propose a preparation device for stannous isooctenoate. The technical problem to be solved by the invention is: how to realize that the preparation device provides efficient inert gas protection for the preparation process, and quickly and effectively mix the raw materials through composite stirring to avoid the occurrence of large local concentration gradients, insufficient reaction, etc., while realizing automatic loading, reducing manual intervention, and improving production efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A preparation device for stannous isooctenoate comprises a work platform, a reactor, a stirring mechanism, and two symmetrically arranged feeding assemblies. The work platform is provided with an avoidance opening, the reactor is located inside the avoidance opening, the stirring mechanism is arranged inside the reactor, and the upper end of the stirring mechanism extends out of the reactor. The stirring mechanism and the reactor are transmission-connected. The two feeding assemblies are both arranged at the upper end of the work platform and located on one side of the reactor. The upper end of the stirring mechanism is communicated with the air outlet of an external air pump, and the air inlet of the air pump is communicated with an external nitrogen generating assembly.

[0006] The working principle of the present invention is as follows: during operation, an external nitrogen generating assembly generates nitrogen, which is transported to a stirring mechanism through an air pump. The nitrogen enters the reactor through the stirring mechanism and discharges the air in the reactor, thereby creating an inert gas environment and preventing the reaction substances from being oxidized; two feeding assemblies symmetrically arranged at the upper end of the working platform and located on one side of the reactor respectively transport the materials required for the reaction to the reactor located inside the avoidance port of the working platform. At this time, the stirring mechanism is started to stir the materials in the reactor so that the materials are fully mixed and react.

[0007] The feeding assembly includes a rotating lifting base and an L-shaped feeding pipe. The rotating lifting base is fixed to the upper end of the working platform. The horizontal part of the L-shaped feeding pipe is fixed to the upper end of the rotating lifting base, and the vertical part of the L-shaped feeding pipe is the discharge end. The feed end of the L-shaped feeding pipe is connected to the discharge end of an external feeding pump through a hose, and the feed end of the feeding pump is connected to the external raw material storage tank.

[0008] With the above structure, the material in the external raw material storage tank enters the feeding pump through the pipeline connected to the feeding end of the feeding pump. The feeding pump pressurizes the material and then transports it to the feeding end of the L-shaped feeding pipe through the hose; the L-shaped feeding pipe is fixed on the rotating lifting base at the upper end of the working platform. The rotating lifting base can adjust the position and height of the L-shaped feeding pipe. The material flows from the horizontal part of the L-shaped feeding pipe to the vertical part, and finally enters the reactor from the discharge end of the vertical part of the L-shaped feeding pipe, realizing accurate material feeding.

[0009] The reactor is mainly composed of a reactor body, an oil bath shell and a reactor cover. The reactor cover is detachably arranged on the upper end of the reactor body. The reactor body is fixed inside the oil bath shell. A closed oil bath interlayer is formed between the reactor body and the oil bath shell. A hot oil port and a cold oil port are provided on the side of the oil bath shell. The hot oil port is connected to the oil outlet end of an external hot oil pump, the oil inlet end of the hot oil pump is connected to an external hot oil tank, the cold oil port is connected to the oil outlet end of an external cold oil pump, and the oil inlet end of the cold oil pump is connected to an external cold oil tank. Four groups of rectangularly distributed legs are fixed to the lower end of the oil bath shell, and an oil outlet is provided at the lower end of the oil bath shell. The oil outlet is connected to the external hot oil tank. A discharge pipe is provided at the lower end of the reactor body. The lower end of the discharge pipe extends out of the lower end of the oil bath shell. A discharge valve is provided on the discharge pipe. A horizontally arranged inner gear ring 1 and a horizontally arranged inner gear ring 2 are fixed on the inner side wall of the main body, and the inner gear ring 1 is located above the inner gear ring 2. Several observation ports are opened on the upper end of the reactor cover, and a transparent acrylic protective plate is detachably provided on the observation port. Two symmetrical feed ports are opened on the upper end of the reactor cover, and a feed port cover and a flip motor for driving the feed port cover to rotate are provided on the feed port. Two symmetrical photoelectric sensors are fixed on the upper end of the reactor cover, and the positions of the photoelectric sensors correspond to the feed ports and the feeding components. Two symmetrical flat tubes are fixed on the upper end of the reactor cover, and the air outlet ends of the two flat tubes are respectively facing the two feed ports, and the air inlet ends of the flat tubes are connected to the air outlet end of the external air pump through a hose and a multi-way connector. A one-way valve is fixed on the upper end of the reactor cover, and the one-way valve is a spring-loaded one-way valve.

[0010] With the above structure, the internal situation of the reactor can be viewed through the acrylic protective plate on the observation port. When loading, the L-shaped feeding tube rotates and passes through the photoelectric sensor. After the photoelectric sensor detects the L-shaped feeding tube, the flip motor drives the feed port cover to rotate and open the feed port. The feeding assembly transports the material into the reactor body through the feed port. During the process, nitrogen is continuously blown out from the flat tube to form an air curtain to prevent debris from entering the feed port. When the reactor is working, the hot oil in the external hot oil tank enters the oil bath interlayer from the hot oil port through the hot oil pump to heat the material in the reactor body. After the reaction is completed, the cold oil in the external cold oil tank is pumped out from the cold oil port to the cold oil tank. The oil port enters the oil bath interlayer to cool the material, and the oil outlet at the lower end of the oil bath shell can return the hot oil in the oil bath interlayer to the hot oil tank; when the stirring mechanism is working, the nitrogen output by the air pump continuously enters the interior of the reactor from the stirring mechanism; the one-way valve on the reactor cover can automatically open and release the pressure by using the spring load principle when the pressure inside the reactor is too high to ensure the safety of the reaction; after the reaction is completed, the discharge valve is opened and the material is discharged through the discharge pipe. During the whole process, the reactor body is fixed in the oil bath shell, and the oil bath shell is supported by four sets of legs. The reactor cover and the reactor body are detachably connected to facilitate equipment maintenance and overhaul.

[0011] The stirring mechanism includes a reduction motor, a hollow main shaft, a three-pronged hollow member and a support shaft. The reduction motor is fixed to the upper end of the reactor cover, the hollow main shaft is vertically arranged, the upper end of the hollow main shaft is transmission-connected to the output shaft of the reduction motor, the lower end of the hollow main shaft passes through the reactor cover and extends into the interior of the reactor body, the middle position of the three-pronged hollow member is fixed to the lower end of the hollow main shaft, the lower ends of the three branches of the three-pronged hollow member are respectively fixed with vertically arranged hollow secondary shafts, the interiors of the hollow main shaft, the three-pronged hollow member and the three hollow secondary shafts are connected, the support shaft is vertically arranged, and the axis of the support shaft is on the same straight line as the axis of the hollow main shaft. The lower end is rotatably connected to the middle position of the bottom end of the reactor body, the upper end of the support shaft is fixedly connected to the middle position of the three-pronged hollow part, a spiral blade is fixed on the outer wall of the support shaft, and two groups of stirring components distributed up and down are provided on the hollow secondary shaft. Gear 1 is fixed on the stirring component located above, and gear 1 is meshed with an inner gear ring 1. Gear 2 is fixed on the stirring component located below, and gear 2 is meshed with an inner gear ring 2. Gear 1 and gear 2 are of different sizes. Two circuit through holes 1 are provided on the hollow secondary shaft. The positions of the two circuit through holes 1 correspond to the two stirring components, and a rubber sealing ring 1 is fixed inside the two circuit through holes 1.

[0012] With the above structure, when working, the reduction motor starts to drive the hollow main shaft to rotate, and each time it rotates a certain angle, it reverses immediately. Since the hollow main shaft is fixedly connected to the three-pronged hollow member, and the three branches of the three-pronged hollow member are fixed with hollow secondary shafts at the lower ends, the hollow main shaft drives the three-pronged hollow member and the three hollow secondary shafts to rotate synchronously; the lower end of the support shaft is rotatably connected to the middle position of the bottom end of the reactor body, and the upper end is fixed to the middle position of the three-pronged hollow member. The spiral blades on its outer wall can assist the material to circulate up and down when rotating; the two sets of stirring components on the hollow secondary shaft rotate with the hollow secondary shaft, and at the same time, the gear one on the stirring component located above is meshed with the inner gear ring one, and the stirring component located below is meshed with the inner gear ring one. Gear 2 on the component is meshed with inner gear ring 2, so that the stirring component can rotate while revolving with the hollow secondary shaft. At the same time, due to the different sizes of gear 1 and gear 2, the stirring component located above and the stirring component located below have different rotation speeds, forming a disordered liquid flow, thereby enhancing the stirring effect; the nitrogen generated by the external nitrogen generating component is transported to the hollow main shaft through the air pump, and then enters the reactor body through the internally connected three-way hollow part and the hollow secondary shaft, providing an inert gas environment for the reaction; the sealing ring 1 in the circuit through hole 1 on the hollow secondary shaft can not only ensure the passage of the circuit, but also prevent the leakage of materials in the reactor body, thereby ensuring the stable and safe operation of the stirring mechanism.

[0013] The stirring assembly includes an inner sleeve, an outer sleeve, a rotating ring, a micro motor and four blade rotating shafts evenly distributed around the circumference. The inner sleeve is located inside the outer sleeve, the hollow secondary shaft is located inside the inner sleeve, and end covers are fixed to the upper and lower ends of the inner sleeve and the outer sleeve respectively. A sealing gasket 1 is provided between the end cover and the inner sleeve and the outer sleeve. A rotating bearing is fixed to the end of the end cover away from the inner sleeve. The end cover is rotatably set on the hollow secondary shaft through the rotating bearing. The rotating ring is rotatably set on the inner sleeve. The lower end of the rotating ring is provided with a plurality of meshing teeth 1 evenly distributed around the circumference, and the upper end of the rotating ring is provided with a plurality of meshing teeth 2 evenly distributed around the circumference. The micro motor is fixed on the side wall of the inner sleeve, and a gear four is rotatably provided on the side wall of the inner sleeve, and the gear four is engaged with the meshing tooth two. The output shaft of the micro motor is transmission-connected with the rotating shaft of the gear four. The four blade shafts are arranged on the side wall of the outer sleeve along the radial direction of the outer sleeve, and the blade shafts pass through the side wall of the outer sleeve. A stirring blade is fixed on the end of the blade shaft located outside the outer sleeve, and a gear three is fixed on the end of the blade shaft located inside the outer sleeve, and the gear three is engaged with the meshing tooth one. A circuit through hole two is opened on the side wall of the inner sleeve, and a rubber sealing ring two is fixed inside the circuit through hole two.

[0014] With the above structure, when working, the micromotor starts, driving gear four to rotate, gear four engages with the meshing tooth two on the rotating ring, driving the rotating ring to rotate on the inner sleeve; the meshing tooth one at the lower end of the rotating ring engages with the four gears three, so that the blade shaft rotates, driving the stirring blade fixed on the blade shaft at one end outside the outer sleeve to rotate, thereby realizing the angle adjustment of the stirring blades on different stirring components, generating a more disordered liquid flow, and enhancing the stirring effect; the inner sleeve and the outer sleeve are connected by end covers at the upper and lower ends, and the sealing gasket one between the end cover and the inner sleeve and the outer sleeve prevents the material from entering the gap between the inner sleeve and the outer sleeve; the rotating bearing enables the stirring component to rotate around the hollow secondary shaft, cooperating with the overall revolution and rotation of the stirring mechanism to enhance the stirring effect; the sealing ring two in the circuit through-hole two on the side wall of the inner sleeve ensures the passage of the micromotor circuit while preventing material leakage, ensuring stable operation of the stirring component.

[0015] A number of rollers evenly distributed around the circumference are rotatably provided on the inner side wall of the rotating ring, the outer edges of the rollers abut against the inner sleeve, and two symmetrically arranged semicircular retaining rings are respectively provided above and below the rotating ring. The four semicircular retaining rings are all fixed on the inner sleeve, and the lower ends of the two semicircular retaining rings located above abut against the upper end of the rotating ring, and the upper ends of the two semicircular retaining rings located below abut against the lower end of the rotating ring. A snap-fitting opening is provided on two opposite ends of the two semicircular retaining rings located above, and the micro motor is located inside the two snap-fitting openings.

[0016] With the above structure, the rotating ring rolls on the inner sleeve through rollers evenly distributed on the circumference of the inner wall, reducing the rotational friction resistance and making the rotation smoother; the upper and lower semicircular retaining rings are fixed on the inner sleeve, and the lower end of the upper semicircular retaining ring contacts the upper end of the rotating ring, and the upper end of the lower semicircular retaining ring contacts the lower end of the rotating ring, limiting the axial displacement of the rotating ring and preventing it from moving up and down; the locking openings of the two semicircular retaining rings at the top provide installation space for the micro motor, so that the micro motor can be fixed on the inner sleeve without affecting the rotation of the rotating ring, thereby ensuring the stable operation of the stirring assembly.

[0017] The outer sleeve consists of an upper outer sleeve and a lower outer sleeve, which are connected by screws. Two symmetrical sealing gaskets are provided between the upper outer sleeve and the lower outer sleeve. The blade shaft is located between the two sealing gaskets. Semicircular fixing openings are provided on the upper outer sleeve, the lower outer sleeve and the two sealing gaskets at positions corresponding to the blade shaft.

[0018] With the above structure, the upper outer sleeve and the lower outer sleeve are connected by screws to form an outer sleeve, and the blade shaft is clamped between two upper and lower symmetrical sealing gaskets 2. The semicircular fixing openings corresponding to the blade shaft on the upper outer sleeve, the lower outer sleeve and the sealing gasket 2 enable the blade shaft to be accurately positioned during installation, ensuring that the gear 3 is correctly engaged with the meshing tooth 1 on the rotating ring; the sealing gasket 2 plays a sealing role to prevent the material in the reactor body from leaking from the connection between the upper outer sleeve and the lower outer sleeve and the contact position between the blade shaft and the outer sleeve, ensuring that the stirring assembly will not affect the stirring effect and equipment operation safety due to material leakage during operation, and it is also convenient to remove the screws to inspect and replace the blade shaft, stirring blades and other components.

[0019] A tee piece 1 is fixed to the upper end of the hollow main shaft, and a tee piece 2 is fixed to the upper end of the tee piece 1. The interiors of the hollow main shaft, tee piece 1 and tee piece 2 are interconnected. The air inlet end of the tee piece 1 is connected to the air outlet end of the external air pump, and the upper end of the tee piece 2 is transmission connected to the output shaft of the reduction motor.

[0020] With the above structure, the gas generated by the external air pump is transported to the air inlet end of the tee piece 1 through the pipeline, and finally enters the reactor body, providing an inert gas environment for the reaction; the output shaft of the reduction motor is transmission-connected to the upper end of the tee piece 2, and the branch of the tee piece 2 is used for the passage of the circuit. The tee piece 1 and the tee piece 2 not only ensure the connectivity of the gas and circuit channels, but also realize the effective transmission of power.

[0021] Compared with the prior art, the preparation device of stannous isooctenoate has the following advantages: 1. By setting up a reactor, the oil bath shell of the reactor is connected to the hot oil pump and cold oil pump through the hot oil port and cold oil port, which can realize the heating and cooling of the reactor body. The oil bath interlayer design makes the temperature distribution more uniform and the reaction temperature is accurately controlled.

[0022] 2. By setting up a stirring mechanism, the hollow countershaft in the stirring mechanism drives the stirring assembly to revolve, while gear 1 and inner gear ring 1, gear 2 and inner gear ring 2 engage to achieve self-rotation, and the different sizes of gears form a disordered liquid flow; the micro motor in the stirring assembly drives the stirring blade to adjust the angle, and the spiral blade of the support shaft assists the material circulation. The multi-layer stirring design ensures that the materials are fully mixed.

[0023] 3. Through the coordination of the stirring mechanism, air pump and nitrogen generating assembly, the air in the reactor can be discharged before the reaction to create an inert gas environment, effectively prevent the reaction substances from being oxidized, and ensure the purity of stannous isooctenoate. At the same time, a flat tube is used to blow air into the feed port to form an air curtain to prevent the entry of debris and ensure the safety of the reaction. The connecting structure of the hollow main shaft, three-way hollow part, hollow secondary shaft, tee piece one and tee piece two realizes the integration of nitrogen delivery, circuit connection and stirring power transmission, and has a compact structure.

[0024] 4. By setting up the feeding component and coordinating the photoelectric sensor with the flip motor, the material can be accurately positioned and loaded, reducing manual intervention and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the working platform in the present invention.

[0027] Figure 3 It is a structural schematic diagram of the feeding component in the present invention.

[0028] Figure 4 It is a structural schematic diagram of the reaction kettle and stirring mechanism in the present invention.

[0029] Figure 5 It is a structural schematic diagram of the oil bath housing in the present invention.

[0030] Figure 6 It is a structural schematic diagram of the reactor body in the present invention.

[0031] Figure 7 It is a structural schematic diagram of the reactor cover in the present invention.

[0032] Figure 8 It is a structural schematic diagram of the stirring mechanism in the present invention.

[0033] Figure 9It is a structural schematic diagram of some components in the stirring mechanism of the present invention.

[0034] Figure 10 It is a structural schematic diagram of the stirring assembly in the present invention.

[0035] Figure 11 It is a schematic diagram of the exploded structure of the stirring assembly in the present invention.

[0036] Figure 12 It is a schematic diagram of the internal structure of the stirring component in the present invention.

[0037] Figure 13 It is a structural schematic diagram of some components in the stirring assembly of the present invention.

[0038] In the figure, 1. working platform; 2. reactor; 3. stirring mechanism; 4. feeding assembly; 5. rotary lifting base; 6. L-shaped feeding pipe; 7. reactor body; 8. oil bath shell; 9. reactor cover; 10. hot oil port; 11. cold oil port; 12. support leg; 13. oil outlet; 14. discharge pipe; 15. discharge valve; 16. inner gear ring 1; 17. inner gear ring 2; 18. observation port; 19. feed port; 20. feed port cover; 21. flip cover motor; 22. photoelectric sensor; 23. flat tube; 24. one-way valve; 25. reduction motor; 26. hollow spindle; 27. three-pronged hollow part; 28. hollow Secondary shaft; 29. Support shaft; 30. Spiral blade; 31. Stirring assembly; 32. Gear 1; 33. Gear 2; 34. Sealing ring 1; 35. Inner sleeve; 36. Outer sleeve; 37. Rotating ring; 38. Meshing tooth 1; 39. Meshing tooth 2; 40. Gear 3; 41. Gear 4; 42. Micro motor; 43. Sealing ring 2; 44. Blade shaft; 45. Stirring blade; 46. Sealing gasket 1; 47. End cover; 48. Rotating bearing; 49. Semicircular retaining ring; 50. Roller; 51. Upper outer sleeve; 52. Lower outer sleeve; 53. Sealing gasket 2; 54. Tee piece 1; 55. Tee piece 2. DETAILED DESCRIPTION

[0039] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0040] like Figures 1-13As shown, the preparation device of stannous isooctenoate comprises a working platform 1, a reactor 2, a stirring mechanism 3 and two symmetrically arranged feeding components 4, the working platform 1 is provided with a avoidance port, the reactor 2 is located inside the avoidance port, the stirring mechanism 3 is arranged inside the reactor 2, and the upper end of the stirring mechanism 3 extends out of the reactor 2, the stirring mechanism 3 and the reactor 2 are transmission-connected, the two feeding components 4 are both arranged at the upper end of the working platform 1, and the two feeding components 4 are both located on one side of the reactor 2, the upper end of the stirring mechanism 3 is connected to the air outlet end of the external air pump, and the air inlet end of the air pump is connected to the external nitrogen generating component.

[0041] In this embodiment, during operation, the external nitrogen generating assembly generates nitrogen, which is transported to the stirring mechanism 3 through the air pump. The nitrogen enters the reactor 2 through the stirring mechanism 3 and discharges the air in the reactor 2, creating an inert gas environment to prevent the reaction substances from being oxidized; two feeding assemblies 4 symmetrically arranged at the upper end of the working platform 1 and located on one side of the reactor 2 respectively transport the materials required for the reaction to the reactor 2 located inside the avoidance port of the working platform 1. At this time, the stirring mechanism 3 is started to stir the materials in the reactor 2 so that the materials are fully mixed and react.

[0042] The feeding assembly 4 includes a rotating lifting base 5 and an L-shaped feeding pipe 6. The rotating lifting base 5 is fixed to the upper end of the working platform 1. The horizontal part of the L-shaped feeding pipe 6 is fixed to the upper end of the rotating lifting base 5, and the vertical part of the L-shaped feeding pipe 6 is the discharge end. The feed end of the L-shaped feeding pipe 6 is connected to the discharge end of the external feeding pump through a hose, and the feed end of the feeding pump is connected to the external raw material storage tank.

[0043] In this embodiment, the material in the external raw material storage tank enters the feeding pump through a pipeline connected to the feeding end of the feeding pump. The feeding pump pressurizes the material and transports it to the feeding end of the L-shaped feeding pipe 6 through a hose; the L-shaped feeding pipe 6 is fixed on the rotating lifting base 5 at the upper end of the working platform 1. The rotating lifting base 5 can adjust the position and height of the L-shaped feeding pipe 6. The material flows from the horizontal part of the L-shaped feeding pipe 6 to the vertical part, and finally enters the reactor 2 from the discharge end of the vertical part of the L-shaped feeding pipe 6, thereby realizing precise material loading.

[0044] The reactor 2 is mainly composed of a reactor body 7, an oil bath shell 8 and a reactor cover 9. The reactor cover 9 is detachably arranged on the upper end of the reactor body 7. The reactor body 7 is fixed inside the oil bath shell 8. A closed oil bath interlayer is formed between the reactor body 7 and the oil bath shell 8. A hot oil port 10 and a cold oil port 11 are provided on the side of the oil bath shell 8. The hot oil port 10 is connected to the oil outlet of an external hot oil pump, and the oil inlet of the hot oil pump is connected to the external hot oil tank. The cold oil port 11 is connected to the oil outlet of the external cold oil pump, and the oil inlet of the cold oil pump is connected to the external cold oil tank. The lower end of the oil bath shell 8 is fixed with four sets of rectangular legs 12, and the lower end of the oil bath shell 8 is provided with an oil outlet 13, and the oil outlet 13 is connected to the external hot oil tank. The lower end of the reactor body 7 is provided with a discharge pipe 14, the lower end of the discharge pipe 14 extends out of the lower end of the oil bath shell 8, and a discharge valve 15 is provided on the discharge pipe 14. The inner side of the reactor body 7 is provided with a discharge valve 15. A horizontally arranged inner gear ring 16 and a horizontally arranged inner gear ring 2 17 are fixed on the wall, and the inner gear ring 16 is located above the inner gear ring 2 17. A number of observation ports 18 are provided on the upper end of the reactor cover 9, and a transparent acrylic protective plate is detachably provided on the observation port 18. Two symmetrical feed ports 19 are provided on the upper end of the reactor cover 9, and a feed port cover 20 and a flip motor 21 for driving the feed port cover 20 to rotate are provided on the feed port 19. Two symmetrical photoelectric sensors 22 are fixed on the upper end of the reactor cover 9, and the positions of the photoelectric sensors 22 correspond to the feed ports 19 and the feeding assembly 4. Two symmetrical flat tubes 23 are fixed on the upper end of the reactor cover 9, and the air outlet ends of the two flat tubes 23 are respectively facing the two feed ports 19, and the air inlet ends of the flat tubes 23 are connected to the air outlet end of the external air pump through a hose and a multi-way connector. A one-way valve 24 is fixed on the upper end of the reactor cover 9, and the one-way valve 24 is a spring-loaded one-way valve.

[0045] In this embodiment, the internal situation of the reactor 2 can be viewed through the acrylic protective plate on the observation port 18. When loading, the L-shaped loading tube 6 rotates and passes through the photoelectric sensor 22. After the photoelectric sensor 22 detects the L-shaped loading tube 6, the flip motor 21 drives the feed port cover 20 to rotate and open the feed port 19. The loading component 4 transports the material into the reactor body 7 through the feed port 19. During the process, nitrogen is continuously blown out from the flat tube 23 to form an air curtain to prevent debris from entering the feed port 19. When the reactor 2 is working, the hot oil in the external hot oil tank enters the oil bath interlayer from the hot oil port 10 through the hot oil pump to heat the material in the reactor body 7. After the reaction is completed, the cold oil in the external cold oil tank is pumped out through the cold oil pump The material enters the oil bath interlayer from the cold oil port 11 to cool down the material, and the oil outlet 13 at the lower end of the oil bath shell 8 can return the hot oil in the oil bath interlayer to the hot oil tank; when the stirring mechanism 3 is working, the nitrogen output by the air pump continuously enters the interior of the reactor 2 from the stirring mechanism 3; the one-way valve 24 on the reactor cover 9 can automatically open and release the pressure by using the spring load principle when the pressure inside the reactor 2 is too high to ensure the safety of the reaction; after the reaction is completed, the discharge valve 15 is opened and the material is discharged through the discharge pipe 14. During the whole process, the reactor body 7 is fixed in the oil bath shell 8, and the oil bath shell 8 is supported by four sets of legs 12. The reactor cover 9 and the reactor body 7 are detachably connected to facilitate equipment maintenance and overhaul.

[0046] The stirring mechanism 3 includes a reduction motor 25, a hollow main shaft 26, a three-pronged hollow member 27 and a support shaft 29. The reduction motor 25 is fixed to the upper end of the reactor cover 9. The hollow main shaft 26 is vertically arranged. The upper end of the hollow main shaft 26 is transmission-connected to the output shaft of the reduction motor 25. The lower end of the hollow main shaft 26 passes through the reactor cover 9 and extends into the interior of the reactor body 7. The middle position of the three-pronged hollow member 27 is fixed to the lower end of the hollow main shaft 26. The lower ends of the three branches of the three-pronged hollow member 27 are respectively fixed with vertically arranged hollow secondary shafts 28. The interiors of the hollow main shaft 26, the three-pronged hollow member 27 and the three hollow secondary shafts 28 are connected. The support shaft 29 is vertically arranged, and the axis of the support shaft 29 is on the same straight line as the axis of the hollow main shaft 26. The support shaft 29 The lower end is rotatably connected to the middle position of the bottom end of the reactor body 7, and the upper end of the support shaft 29 is fixedly connected to the middle position of the three-way hollow part 27. A spiral blade 30 is fixed on the outer wall of the support shaft 29, and two groups of stirring components 31 distributed up and down are provided on the hollow countershaft 28. A gear 1 32 is fixed on the stirring component 31 located above, and the gear 1 32 is meshed with the inner ring gear 16. A gear 2 33 is fixed on the stirring component 31 located below, and the gear 2 33 is meshed with the inner ring gear 2 17. The gear 1 32 and the gear 2 33 are of different sizes. Two circuit through holes 1 are provided on the hollow countershaft 28. The positions of the two circuit through holes 1 correspond to the two stirring components 31, and a rubber sealing ring 1 34 is fixed inside the two circuit through holes 1.

[0047] In this embodiment, when working, the reduction motor 25 is started, driving the hollow main shaft 26 to rotate, and each time it rotates a certain angle, it reverses immediately. Since the hollow main shaft 26 is fixedly connected to the three-pronged hollow member 27, and the three branches of the three-pronged hollow member 27 are fixed with a hollow secondary shaft 28 at the lower end, the hollow main shaft 26 drives the three-pronged hollow member 27 and the three hollow secondary shafts 28 to rotate synchronously; the lower end of the support shaft 29 is rotatably connected to the middle position of the bottom end of the reactor body 7, and the upper end is fixed to the middle position of the three-pronged hollow member 27. The spiral blades 30 on its outer wall can assist the material to circulate up and down when rotating; the two groups of stirring components 31 on the hollow secondary shaft 28 rotate with the hollow secondary shaft 28. At the same time, the gear 1 32 on the stirring component 31 at the top is engaged with the inner gear ring 16, and the gear 1 32 on the stirring component 31 at the bottom is engaged with the inner gear ring 16. The gear 2 33 on the stirring assembly 31 is meshed with the inner ring gear 2 17, so that the stirring assembly 31 can rotate while revolving with the hollow secondary shaft 28. At the same time, due to the different sizes of gear 1 32 and gear 2 33, the stirring assembly 31 located above and the stirring assembly 31 located below have different rotation speeds, forming a disordered liquid flow, thereby enhancing the stirring effect; the nitrogen generated by the external nitrogen generating assembly is transported to the hollow main shaft 26 through the air pump, and then enters the reactor body 7 through the internally connected three-pronged hollow part 27 and the hollow secondary shaft 28, providing an inert gas environment for the reaction; the sealing ring 1 34 in the circuit through hole 1 on the hollow secondary shaft 28 can not only ensure the passage of the circuit, but also prevent the leakage of materials in the reactor body 7, thereby ensuring the stable and safe operation of the stirring mechanism 3.

[0048] The stirring assembly 31 includes an inner sleeve 35, an outer sleeve 36, a rotating ring 37, a micro motor 42 and four blade shafts 44 evenly distributed around the circumference. The inner sleeve 35 is located inside the outer sleeve 36, and the hollow secondary shaft 28 is located inside the inner sleeve 35. End covers 47 are fixed to the upper and lower ends of the inner sleeve 35 and the outer sleeve 36 respectively. A sealing gasket 46 is provided between the end cover 47 and the inner sleeve 35 and the outer sleeve 36. A rotating bearing 48 is fixed to the end of the end cover 47 away from the inner sleeve 35. The end cover 47 is rotatably set on the hollow secondary shaft 28 through the rotating bearing 48. The rotating ring 37 is rotatably set on the inner sleeve 35. The lower end of the rotating ring 37 is provided with a plurality of meshing teeth 38 evenly distributed around the circumference, and the upper end of the rotating ring 37 is provided with a plurality of meshing teeth 38 evenly distributed around the circumference. Tooth two 39, a micro motor 42 is fixed on the side wall of the inner sleeve 35, and a gear four 41 is rotatably provided on the side wall of the inner sleeve 35, and the gear four 41 is engaged with the meshing tooth two 39. The output shaft of the micro motor 42 is transmission-connected with the rotating shaft of the gear four 41. Four blade shafts 44 are arranged on the side wall of the outer sleeve 36 along the radial direction of the outer sleeve 36, and the blade shafts 44 pass through the side wall of the outer sleeve 36. A stirring blade 45 is fixed on one end of the blade shaft 44 located outside the outer sleeve 36, and a gear three 40 is fixed on one end of the blade shaft 44 located inside the outer sleeve 36. The gear three 40 is engaged with the meshing tooth one 38. A circuit through hole two is opened on the side wall of the inner sleeve 35, and a sealing ring two 43 made of rubber material is fixed inside the circuit through hole two.

[0049] In this embodiment, when working, the micro motor 42 is started, driving the gear 41 to rotate, and the gear 41 engages with the meshing tooth 2 39 on the rotating ring 37, driving the rotating ring 37 to rotate on the inner sleeve 35; the meshing tooth 1 38 at the lower end of the rotating ring 37 engages with the four gears 3 40, so that the blade shaft 44 rotates, driving the stirring blade 45 fixed to the blade shaft 44 at one end outside the outer sleeve 36 to rotate, thereby achieving angle adjustment of the stirring blade 45 on different stirring components 31, generating a more disordered liquid flow and enhancing the stirring effect. ; The inner sleeve 35 and the outer sleeve 36 are connected by end covers 47 at the upper and lower ends. A sealing gasket 46 between the end cover 47 and the inner sleeve 35 and the outer sleeve 36 prevents material from entering the gap between the inner sleeve 35 and the outer sleeve 36; the rotating bearing 48 allows the stirring assembly 31 to rotate around the hollow secondary shaft 28, cooperating with the overall revolution and rotation of the stirring mechanism 3 to enhance the stirring effect; the sealing ring 2 43 in the circuit through hole 2 on the side wall of the inner sleeve 35 ensures that the circuit of the micro motor 42 passes through while preventing material leakage, ensuring stable operation of the stirring assembly 31.

[0050] A number of rollers 50 evenly distributed around the circumference are rotatably provided on the inner side wall of the rotating ring 37. The outer edges of the rollers 50 abut against the inner sleeve 35. Two symmetrically arranged semicircular retaining rings 49 are respectively provided above and below the rotating ring 37. The four semicircular retaining rings 49 are all fixed on the inner sleeve 35, and the lower ends of the two semicircular retaining rings 49 located above abut against the upper end of the rotating ring 37, and the upper ends of the two semicircular retaining rings 49 located below abut against the lower end of the rotating ring 37. A snap-fitting opening is provided on two opposite ends of the two semicircular retaining rings 49 located above, and the micromotor 42 is located inside the two snap-fitting openings.

[0051] In this embodiment, the rotating ring 37 rolls on the inner sleeve 35 through rollers 50 evenly distributed on the circumference of the inner wall, reducing the rotational friction resistance and making the rotation smoother; the upper and lower semicircular retaining rings 49 are fixed on the inner sleeve 35, and the lower end of the upper semicircular retaining ring 49 is in contact with the upper end of the rotating ring 37, and the upper end of the lower semicircular retaining ring 49 is in contact with the lower end of the rotating ring 37, limiting the axial displacement of the rotating ring 37 and preventing it from moving up and down; the locking openings of the two semicircular retaining rings 49 at the top provide installation space for the micro motor 42, so that the micro motor 42 can be fixed on the inner sleeve 35 without affecting the rotation of the rotating ring 37, thereby ensuring the stable operation of the stirring assembly 31.

[0052] The outer sleeve 36 consists of an upper outer sleeve 51 and a lower outer sleeve 52, which are connected by screws. Two upper and lower symmetrical sealing gaskets 53 are provided between the upper outer sleeve 51 and the lower outer sleeve 52, and the blade shaft 44 is located between the two sealing gaskets 53. Semicircular fixing openings are provided on the upper outer sleeve 51, the lower outer sleeve 52 and the two sealing gaskets 53 at positions corresponding to the blade shaft 44.

[0053] In this embodiment, the upper outer sleeve 51 and the lower outer sleeve 52 are connected by screws to form the outer sleeve 36, and the blade shaft 44 is clamped between two upper and lower symmetrical sealing gaskets 53. The semicircular fixing openings on the upper outer sleeve 51, the lower outer sleeve 52 and the sealing gasket 53 corresponding to the blade shaft 44 enable the blade shaft 44 to be accurately positioned during installation, ensuring that the gear 3 40 is correctly engaged with the meshing tooth 1 38 on the rotating ring 37; the sealing gasket 53 plays a sealing role to prevent the material in the reactor body 7 from leaking from the connection between the upper outer sleeve 51 and the lower outer sleeve 52 and the contact position between the blade shaft 44 and the outer sleeve 36, thereby ensuring that the stirring assembly 31 will not affect the stirring effect and equipment operation safety due to material leakage during operation, and at the same time, it is also convenient to remove the screws to inspect and replace components such as the blade shaft 44 and the stirring blade 45.

[0054] A tee piece 54 is fixed to the upper end of the hollow main shaft 26, and a tee piece 2 55 is fixed to the upper end of the tee piece 1 54. The interiors of the hollow main shaft 26, tee piece 1 54 and tee piece 2 55 are interconnected. The air inlet end of the tee piece 1 54 is connected to the air outlet end of the external air pump, and the upper end of the tee piece 2 55 is transmission connected to the output shaft of the reduction motor 25.

[0055] In this embodiment, the gas generated by the external air pump is transported to the air inlet end of the tee piece 1 54 through a pipeline, and finally enters the reactor body 7, providing an inert gas environment for the reaction; the output shaft of the reduction motor 25 is transmission-connected to the upper end of the tee piece 2 55, and the branch of the tee piece 2 55 is used for the passage of the circuit. The tee piece 1 54 and the tee piece 2 55 not only ensure the connectivity of the gas and circuit channels, but also realize the effective transmission of power.

[0056] The working principle of the present invention is as follows: when the preparation of stannous isooctenoate begins, the external nitrogen generating assembly generates nitrogen, which is sequentially passed through the three-way piece 54, the two-way piece 55, the hollow main shaft 26, the three-way hollow piece 27 and the hollow secondary shaft 28 into the reactor body 7 through the air pump, and the air in the reactor 2 is discharged to create an inert gas environment; then, the material in the external raw material storage tank is pressurized by the feeding pump and transported to the L-shaped feeding pipe 6 through the hose, and the rotating lifting base 5 adjusts the position and height of the L-shaped feeding pipe 6. When the L-shaped feeding pipe 6 rotates and passes the photoelectric sensor 22, the flip motor 21 drives the feed port cover 20 to open the feed port 19, and the material enters the reactor body 7 through the feed port 19. At the same time, the flat tube 23 blows out nitrogen to form an air curtain to prevent debris from entering; then, the reduction motor 25 is started, driving the hollow main shaft 26 to rotate, thereby rotating the three-way hollow piece 27, the hollow secondary shaft 28 and the stirring assembly 31, and the gears on the stirring assembly 31 The wheel 1 32 and the gear 2 33 are respectively engaged with the inner gear ring 16 and the inner gear ring 2 17 to realize revolution and rotation, and a disordered liquid flow is formed due to the different sizes of the gears. At the same time, the micro motor 42 drives the rotating ring 37 to rotate, driving the stirring blade 45 to rotate and adjust the angle to further enhance the stirring effect. The spiral blade 30 on the outer wall of the support shaft 29 assists the material to circulate up and down. During the reaction process, the hot oil in the external hot oil tank enters the oil bath interlayer from the hot oil port 10 through the hot oil pump to heat the material. After the reaction is completed, the cold oil enters the oil bath interlayer from the cold oil port 11 through the cold oil pump to cool the material. The hot oil in the oil bath interlayer can flow back to the hot oil tank through the oil outlet 13. If the internal pressure of the reactor 2 is too high, the one-way valve 24 automatically opens to relieve pressure. After the reaction is completed, the discharge valve 15 is opened, and the material is discharged through the discharge pipe 14 and enters the next reaction device. During the whole process, the sealing structure of each component prevents material leakage, ensuring stable and safe operation of the equipment.

[0057] In summary, by setting up the reactor 2, the oil bath shell 8 of the reactor 2 is connected to the hot oil pump and the cold oil pump through the hot oil port 10 and the cold oil port 11, so that the reactor body 7 can be heated and cooled. The oil bath interlayer design makes the temperature distribution more uniform and the reaction temperature can be accurately controlled. By setting up a stirring mechanism 3, the hollow secondary shaft 28 in the stirring mechanism 3 drives the stirring assembly 31 to rotate, while the gear 1 32 and the inner ring gear 1 16, and the gear 2 33 and the inner ring gear 2 17 are meshed to achieve self-rotation, and the different sizes of the gears form a disordered liquid flow; the micro motor 42 in the stirring assembly 31 drives the stirring blade 45 to adjust the angle, and cooperates with the spiral blade 30 of the support shaft 29 to assist the material circulation. The multi-layer stirring design ensures that the materials are fully mixed; By cooperating with the stirring mechanism 3, the air pump and the nitrogen generating assembly, the air in the reactor 2 can be discharged before the reaction, creating an inert gas environment, effectively preventing the reaction substances from being oxidized, and ensuring the purity of the stannous isooctenate. At the same time, the flat tube 23 is used to blow air to the feed port 19 to form an air curtain to prevent the entry of debris and ensure the safety of the reaction. The connecting structure of the hollow main shaft 26, the three-way hollow member 27, the hollow secondary shaft 28, the tee piece 54 and the tee piece 55 realizes the integration of nitrogen delivery, circuit connection and stirring power transmission, and has a compact structure. By providing the feeding component 4 and coordinating the photoelectric sensor 22 with the flip motor 21 , accurate positioning and feeding of materials can be achieved, thus reducing manual intervention and improving production efficiency.

[0058] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A device for preparing stannous isooctenoate, comprising a working platform (1), a reaction kettle (2), a stirring mechanism (3) and two symmetrically arranged feeding assemblies (4), characterized in that: The working platform (1) is provided with an escape opening, the reactor (2) is located inside the escape opening, the stirring mechanism (3) is arranged inside the reactor (2), and the upper end of the stirring mechanism (3) extends out of the reactor (2), the stirring mechanism (3) and the reactor (2) are connected by transmission, two feeding assemblies (4) are both arranged at the upper end of the working platform (1), and the two feeding assemblies (4) are both located on one side of the reactor (2), the upper end of the stirring mechanism (3) is communicated with the air outlet end of an external air pump, and the air inlet end of the air pump is communicated with the external nitrogen generating assembly.

2. A preparation device for stannous isooctenoate according to claim 1, characterized in that, The feeding assembly (4) comprises a rotating lifting base (5) and an L-shaped feeding pipe (6), the rotating lifting base (5) is fixed to the upper end of the working platform (1), the horizontal portion of the L-shaped feeding pipe (6) is fixed to the upper end of the rotating lifting base (5), and the vertical portion of the L-shaped feeding pipe (6) is the discharge end, the feed end of the L-shaped feeding pipe (6) is connected to the discharge end of an external feeding pump through a hose, and the feed end of the feeding pump is connected to an external raw material storage tank.

3. A preparation device for stannous isooctenoate according to claim 2, characterized in that, The reactor (2) is mainly composed of a reactor body (7), an oil bath shell (8) and a reactor cover (9). The reactor cover (9) is detachably arranged on the upper end of the reactor body (7). The reactor body (7) is fixed inside the oil bath shell (8). A closed oil bath interlayer is formed between the reactor body (7) and the oil bath shell (8). A hot oil port (10) and a cold oil port (11) are provided on the side of the oil bath shell (8). The hot oil port (10) is connected to the oil outlet of an external hot oil pump, and the oil inlet of the hot oil pump is connected to the external hot oil tank. The cold oil port (11) is connected to the oil outlet of the external cold oil pump, and the oil inlet of the cold oil pump is connected to the external cold oil tank. The lower end of the oil bath shell (8) is fixed with four groups of rectangularly distributed legs (12), and the lower end of the oil bath shell (8) is provided with an oil outlet (13), and the oil outlet (13) is connected to the external hot oil tank. The lower end of the reactor body (7) is provided with a discharge pipe (14), the lower end of the discharge pipe (14) extends out of the lower end of the oil bath shell (8), and a discharge valve (15) is provided on the discharge pipe (14). A horizontally arranged inner gear ring 1 (16) and a horizontally arranged inner gear ring 2 (17) are fixed on the inner side wall. The inner gear ring 1 (16) is located above the inner gear ring 2 (17). A plurality of observation ports (18) are provided on the upper end of the reactor cover (9). A transparent acrylic protective plate is detachably provided on the observation port (18). Two symmetrical feed ports (19) are provided on the upper end of the reactor cover (9). The feed ports (19) are provided with a feed port cover (20) and a flip cover motor (21) for driving the feed port cover (20) to rotate. The reactor cover ( Two symmetrical photoelectric sensors (22) are fixed on the upper end of the reactor cover (9), and the positions of the photoelectric sensors (22) correspond to the feed port (19) and the loading assembly (4). Two symmetrical flat tubes (23) are fixed on the upper end of the reactor cover (9), and the gas outlet ends of the two flat tubes (23) are respectively directed toward the two feed ports (19). The gas inlet ends of the flat tubes (23) are connected to the gas outlet end of the external air pump through a hose and a multi-way connector. A one-way valve (24) is fixed on the upper end of the reactor cover (9), and the one-way valve (24) is a spring-loaded one-way valve.

4. A preparation device for stannous isooctenoate according to claim 3, characterized in that, The stirring mechanism (3) includes a reduction motor (25), a hollow main shaft (26), a three-branch hollow member (27) and a support shaft (29), wherein the reduction motor (25) is fixed to the upper end of the reactor cover (9), the hollow main shaft (26) is vertically arranged, the upper end of the hollow main shaft (26) is drivingly connected to the output shaft of the reduction motor (25), the lower end of the hollow main shaft (26) passes through the reactor cover (9) and extends into the interior of the reactor body (7), the middle position of the three-branch hollow member (27) is fixed to the lower end of the hollow main shaft (26), the lower ends of the three branches of the three-branch hollow member (27) are respectively fixed with vertically arranged hollow secondary shafts (28), the interiors of the hollow main shaft (26), the three-branch hollow member (27) and the three hollow secondary shafts (28) are connected, the support shaft (29) is vertically arranged, and the axis of the support shaft (29) is located on the same straight line as the axis of the hollow main shaft (26), and the support shaft (29) is vertically arranged. The lower end of the shaft (29) is rotatably connected to the middle position of the bottom end of the reactor body (7), and the upper end of the support shaft (29) is fixedly connected to the middle position of the three-pronged hollow member (27). A spiral blade (30) is fixed on the outer wall of the support shaft (29). Two groups of stirring components (31) distributed up and down are provided on the hollow secondary shaft (28). A gear 1 (32) is fixed on the stirring component (31) located at the top, and the gear 1 (32) is meshed with the inner gear ring 1 (16). A gear 2 (33) is fixed on the stirring component (31) located at the bottom, and the gear 2 (33) is meshed with the inner gear ring 2 (17). The gear 1 (32) and the gear 2 (33) are different in size. Two circuit through holes 1 are provided on the hollow secondary shaft (28). The positions of the two circuit through holes 1 correspond to the two stirring components (31), and a rubber sealing ring 1 (34) is fixed inside the two circuit through holes 1.

5. A preparation device for stannous isooctenoate according to claim 4, characterized in that, The stirring assembly (31) includes an inner sleeve (35), an outer sleeve (36), a rotating ring (37), a micro motor (42) and four blade rotating shafts (44) uniformly distributed around the circumference. The inner sleeve (35) is located inside the outer sleeve (36), and the hollow secondary shaft (28) is located inside the inner sleeve (35). End covers (47) are fixed to the upper and lower ends of the inner sleeve (35) and the outer sleeve (36), respectively. A sealing gasket (46) is provided between the end cover (47) and the inner sleeve (35) and the outer sleeve (36). A rotating bearing (48) is fixed to the end of the end cover (47) away from the inner sleeve (35). The end cover (47) is rotatably set on the hollow secondary shaft (28) through the rotating bearing (48). The rotating ring (37) is rotatably set on the inner sleeve (35). The lower end of the rotating ring (37) is provided with a plurality of meshing teeth (38) uniformly distributed around the circumference. The upper end of the rotating ring (37) is provided with a plurality of meshing teeth (38) uniformly distributed around the circumference. The micro motor (42) is fixed on the side wall of the inner sleeve (35), and a gear (41) is rotatably provided on the side wall of the inner sleeve (35). The gear (41) is engaged with the meshing tooth (39). The output shaft of the micro motor (42) is connected to the rotating shaft of the gear (41). Four blade shafts (44) are arranged on the side wall of the outer sleeve (36) along the radial direction of the outer sleeve (36). The blade shafts (44) pass through the side wall of the outer sleeve (36). A stirring blade (45) is fixed on one end of the blade shaft (44) located outside the outer sleeve (36). A gear (40) is fixed on one end of the blade shaft (44) located inside the outer sleeve (36). The gear (40) is engaged with the meshing tooth (38). A circuit through hole (2) is opened on the side wall of the inner sleeve (35), and a rubber sealing ring (43) is fixed inside the circuit through hole (2).

6. A preparation device for stannous isooctenoate according to claim 5, characterized in that, A plurality of rollers (50) evenly distributed around the circumference are rotatably provided on the inner side wall of the rotating ring (37), and the outer edges of the rollers (50) are in contact with the inner sleeve (35). Two symmetrically arranged semicircular retaining rings (49) are respectively provided above and below the rotating ring (37). The four semicircular retaining rings (49) are all fixed on the inner sleeve (35), and the lower ends of the two semicircular retaining rings (49) located above are in contact with the upper end of the rotating ring (37), and the upper ends of the two semicircular retaining rings (49) located below are in contact with the lower end of the rotating ring (37). A snap-fitting opening is provided on two opposite ends of the two semicircular retaining rings (49), and the micro motor (42) is located inside the two snap-fitting openings.

7. A device for preparing stannous isooctenoate according to claim 6, characterized in that, The outer sleeve (36) is composed of an upper outer sleeve (51) and a lower outer sleeve (52), and the upper outer sleeve (51) and the lower outer sleeve (52) are connected by screws. Two upper and lower symmetrical sealing gaskets (53) are provided between the upper outer sleeve (51) and the lower outer sleeve (52), and the blade shaft (44) is located between the two sealing gaskets (53). Semicircular fixing openings are provided on the upper outer sleeve (51), the lower outer sleeve (52) and the two sealing gaskets (53) at positions corresponding to the blade shaft (44).

8. A preparation device for stannous isooctenoate according to claim 7, characterized in that, A tee piece 1 (54) is fixed to the upper end of the hollow main shaft (26), and a tee piece 2 (55) is fixed to the upper end of the tee piece 1 (54). The interiors of the hollow main shaft (26), the tee piece 1 (54) and the tee piece 2 (55) are interconnected. The air inlet end of the tee piece 1 (54) is connected to the air outlet end of the external air pump, and the upper end of the tee piece 2 (55) is connected to the output shaft of the reduction motor (25).

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